Lg Electronics Inc.

Sk Innovation Co., Ltd.

Korea Institute of Science and Technology

Sk Energy Co., Ltd.

Korea Railroad Research Institute

In Ho Cho

Eun Jin Park

Hyung Yong Kim

Sang Heon Lee

Soo Young Oh

Kyung Chul Woo

Ig Geun Kwon

Byung Keol Choi

Woo Young Kim

Han Su Jung

Myong Hun Im

Moon Hee Hong

Sang Il Hwang

Bo Yeon Kim

Hyung Gyu Lim

Sin Young Kang

Jae Yeon Park

Dong Joo Han

Min Su Koo

Joong Min Park

Seung Yeop Lee

Woo Chan Park

Dong Hyun Kim

Young Bok Son

Deug Hee Lee

Seong Ho Lee

Jae Wook Ryu

Jong Chul Bang

Ki Chul Cho

Sun Mi Lee

Pyoung Hwan Kim

Young Seek Yoon

Jae Yoen Lim

Sam Ryong Park

Dong Woo Kang

Yong Jang Kwon

Young Soon Um

Young Woong Suh

Joon Sik Lee

Cher Hee Park

Eun Hee Park

Shin Myung Jung

Jong Hee Song

Young Hwan Chu

Hyung Woong Ahn

Byung Song Lee

Byoung In Sang

Myong Hung Im

Dong Gyu Jang

The present invention provides a fed-batch culture method comprising a step of fed-batch-feeding a carbon source base and a base in such a manner that the pH level can be maintained at a level suitable for the growth of microorganisms for fermentation of a carbon source. The present invention also provides a method for preparing organic acids using the fed-batch culture method. The present invention fed-batch-feeds a neutralizing agent such as ammonium bicarbonate, ammonium carbonate or alkali metal-containing weak base, and a carbon source substrate in preparing organic acids by microorganism fermentation. Thus, a pH level suitable for the survival of microorganisms for carbon source fermentation can be maintained, and the speed of injecting the carbon source base which is the source material can be appropriately adjusted. The present invention may improve productivity, yield rate and concentration of organic acids and may automatically inject a base and a carbon source substrate according to a variation in the pH level, thus improving reliability and convenience of a fermentation process operation.

Method for preparing organic acid by fed-batch-feeding carbon source substrate and base

A charging apparatus for unmanned aerial vehicles and a charging method thereof. The charging apparatus includes: a transmit coil provided to a charging station and generating a magnetic field; a reception coil generating induced electromotive force according to variation of magnetic flux of the transmit coil; a reception coil adjuster adjusting at least one of an inclination and an orientation of the reception coil; and a controller controlling at least one of the inclination and the orientation of the reception coil by controlling the reception coil adjuster according to magnitude of the induced electromotive force generated in the reception coil by the magnetic field generated in the transmit coil.

Charging apparatus for unmanned aerial vehicles and method thereof

The present invention relates to washing machines, and, more particularly, to a washing machine in which a drum that holds laundry is rotated with respect to a substantially horizontal rotation shaft. The washing machine includes a shoe course selection unit for enabling a user to select a shoe course, and a controller for controlling operation of the washing machine to wash shoes while swinging the drum within 90&#xb0; in left/right directions if the user selects the shoe course.

Washing machine having washing course for shoes

A washing machine is disclosed. A washing machine includes a tub holding wash water, a drum rotatable within the tub to hold laundry, a first cabinet defining a first space to wash laundry together with the tub and the drum, a second cabinet defining a second space for an additional function, the second cabinet formed as one body with the first cabinet, and a single partition provided between the first and second cabinets to partition off the second space from the first space.

Washing machine

Disclosed is a method of preparing alkyl butyrate, which comprises: (a) producing a fermented liquid containing butyrate salt through a fermentation process using butyric acid-producing strains; (b) obtaining an extracted liquid containing butyric acid from a continuous extracting apparatus using an extraction solvent, after converting the butyrate salt into butyric acid by adding an inorganic acid except for carbonic acid or carbon dioxide into the fermented liquid, wherein the continuous extracting apparatus includes a plurality of extraction plates which are installed inside an extraction column and perform a reciprocating motion vertically, and the broth and the extraction solvent are supplied to upper and lower portions of the column, respectively; and (c) reacting the extracted liquid and alcohol having a carbon number of 4 or less or a mixture thereof in an esterification reactor to convert a resultant product into alkyl butyrate. According to the present invention, butyric acid existing in microbic culture fluid can be efficiently extracted, and furthermore, competitively priced alkyl butyrate can be prepared without an additional process of separating the extracted solvent while minimizing energy consumption.

Method of preparing alkyl butyrate from fermented liquid using microorganisms

A laundry machine and a control method thereof are provided in which laundering ability may be improved while also improving efficiency and noise/vibration. The laundry machine employs a plurality of drum motions by varying drum rotational speed, drum rotational direction, and drum starting and stopping point, to provide different motion of laundry items in the drum.

Control method of a laundry machine

Laundry machine

Disclosed is a method of converting butyric acid contained in a fermentation broth into biofuel. This chemical conversion method includes separating biohydrogen from gases generated in the course of production of butyric acid through fermentation of carbohydrate, extracting butyric acid from the broth using an insoluble solvent, esterifying butyric acid thus producing butylbutyrate, and hydrogenolyzing all or part of butylbutyrate, thus obtaining butanol. Thereby, biobutanol can be efficiently and economically produced, and butylbutyrate, which has oxidation stability superior to that of conventional biodiesel (fatty acid methyl ester) and is thus regarded as novel biofuel, can be produced together.

Method of extracting butyric acid from a fermented liquid and chemically converting butyric acid into biofuel

A laundry machine includes a first laundry treatment space configured to receive laundry therein, a second laundry treatment space configured to receive laundry therein, and an air supply unit configured to supply air to the second laundry treatment space, the air supply unit comprising a fan, a heating part, a first sensor part for sensing a temperature of air supplied by the air supply unit, and a control part for controlling a temperature of the supplied air to be within a predetermined range.

A laundry machine includes a first laundry treatment apparatus, second laundry treatment apparatus including an air supply unit, a first course selection part for a user to select a treating course for the first laundry treatment apparatus, and a second course selection part provided together with the first course selection part, the second course selection part for the user to select a treating course for the second laundry treatment apparatus.

Laundry machine having first and second laundry treating spaces

A washing machine is disclosed. A washing machine includes a tub holding wash water, a drum rotatable within the tub to hold laundry, a first cabinet forming a first space provided with the tub and the drum to wash laundry, a second cabinet forming a second space for additional function, the second cabinet formed as one body with the first cabinet, and a single partition wall provided between the first and second cabinets to partition off the second space from the first space, wherein the second cabinet comprises a first frame and a second frame provided in both opposite portions out of front and rear portions and side portions of the second cabinet, the first and second frames having a rectangular shape.

A washing machine is disclosed. A washing includes a tub holding wash water, a drum rotatable within the tub to hold laundry, a first cabinet forming a first space provided with the tub and the drum to wash laundry, a second cabinet forming a second space for additional function, the second cabinet formed as one body with the first cabinet, and a single partition provided between the first and second cabinets to partition off the second space from the first space, wherein facing ends of the first and second cabinets are in contact with each other to form a single border line.

Growing community of inventors

Changwon-si, South Korea

In Ho Cho